US5668552A - Analogue-to-digital converters - Google Patents
Analogue-to-digital converters Download PDFInfo
- Publication number
- US5668552A US5668552A US08/313,316 US31331694A US5668552A US 5668552 A US5668552 A US 5668552A US 31331694 A US31331694 A US 31331694A US 5668552 A US5668552 A US 5668552A
- Authority
- US
- United States
- Prior art keywords
- filter
- output
- stage
- analogue
- order
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
- H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
- H03M3/44—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable
- H03M3/442—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable by restricting the swing within the loop, e.g. gain scaling
- H03M3/444—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with provisions for rendering the modulator inherently stable by restricting the swing within the loop, e.g. gain scaling using non-linear elements, e.g. limiters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/402—Arrangements specific to bandpass modulators
- H03M3/404—Arrangements specific to bandpass modulators characterised by the type of bandpass filters used
- H03M3/408—Arrangements specific to bandpass modulators characterised by the type of bandpass filters used by the use of an LC circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
- H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
- H03M3/452—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with weighted feedforward summation, i.e. with feedforward paths from more than one filter stage to the quantiser input
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/436—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type
- H03M3/438—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path
- H03M3/454—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the order of the loop filter, e.g. error feedback type the modulator having a higher order loop filter in the feedforward path with distributed feedback, i.e. with feedback paths from the quantiser output to more than one filter stage
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9207626 | 1992-04-08 | ||
GB929207626A GB9207626D0 (en) | 1992-04-08 | 1992-04-08 | Data converters |
PCT/GB1993/000727 WO1993021691A1 (en) | 1992-04-08 | 1993-04-06 | Analogue-to-digital converters |
Publications (1)
Publication Number | Publication Date |
---|---|
US5668552A true US5668552A (en) | 1997-09-16 |
Family
ID=10713626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/313,316 Expired - Fee Related US5668552A (en) | 1992-04-08 | 1993-04-06 | Analogue-to-digital converters |
Country Status (6)
Country | Link |
---|---|
US (1) | US5668552A (en) |
EP (1) | EP0635176B1 (en) |
AU (1) | AU3958693A (en) |
DE (1) | DE69312281T2 (en) |
GB (2) | GB9207626D0 (en) |
WO (1) | WO1993021691A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2785109A1 (en) * | 1998-10-23 | 2000-04-28 | Thomson Csf | Sigma-delta modulator with delay compensation for contained analog-to-digital converter, has compensating filter in subtractor loop and digital-to-analog converter in feedback loop |
US20040176892A1 (en) * | 2003-03-07 | 2004-09-09 | Denso Corporation | Data transmission system and occupant protection device |
US20050038847A1 (en) * | 2000-11-17 | 2005-02-17 | Broadcom Corporation | System and method for stabilizing high order sigma delta modulators |
US7057541B1 (en) * | 2004-11-29 | 2006-06-06 | Hrl Laboratories, Llc | Delta-sigma modulator using LC resonators |
US7209528B2 (en) * | 2001-06-01 | 2007-04-24 | National Semiconductor, Inc. | Over-sampling A/D converter with adjacent channel power detection |
US20080088346A1 (en) * | 2006-07-12 | 2008-04-17 | Coleman Edward P | Method and apparatus for voltage to current conversion |
US20110156940A1 (en) * | 2004-11-16 | 2011-06-30 | St-Ericsson Sa | Continuous-time sigma-delta analog-to-digital converter with non-invasive filter(s) for immunity preservation against interferers |
US20190393841A1 (en) * | 2017-06-16 | 2019-12-26 | Nippon Telegraph And Telephone Corporation | Amplifier |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2281828B (en) * | 1993-09-14 | 1997-08-06 | Marconi Gec Ltd | Analogue-to-digital converters and digital modulators |
DE19518508A1 (en) * | 1994-07-28 | 1996-02-08 | Hewlett Packard Co | Inexpensive sigma-delta modulator |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4857928A (en) * | 1988-01-28 | 1989-08-15 | Motorola, Inc. | Method and arrangement for a sigma delta converter for bandpass signals |
EP0399738A2 (en) * | 1989-05-26 | 1990-11-28 | Gec-Marconi Limited | Analogue to digital converter |
GB2256331A (en) * | 1991-06-01 | 1992-12-02 | Marconi Gec Ltd | Analogue-to-digital converters |
US5311181A (en) * | 1990-01-31 | 1994-05-10 | Analog Devices, Inc. | Sigma delta modulator |
US5392039A (en) * | 1991-06-01 | 1995-02-21 | Gec-Marconi Lmited | Sigma-delta analog to digital converter |
-
1992
- 1992-04-08 GB GB929207626A patent/GB9207626D0/en active Pending
-
1993
- 1993-04-06 EP EP93909036A patent/EP0635176B1/en not_active Expired - Lifetime
- 1993-04-06 GB GB9307164A patent/GB2266018B/en not_active Expired - Fee Related
- 1993-04-06 DE DE69312281T patent/DE69312281T2/en not_active Expired - Fee Related
- 1993-04-06 AU AU39586/93A patent/AU3958693A/en not_active Abandoned
- 1993-04-06 US US08/313,316 patent/US5668552A/en not_active Expired - Fee Related
- 1993-04-06 WO PCT/GB1993/000727 patent/WO1993021691A1/en active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4857928A (en) * | 1988-01-28 | 1989-08-15 | Motorola, Inc. | Method and arrangement for a sigma delta converter for bandpass signals |
EP0399738A2 (en) * | 1989-05-26 | 1990-11-28 | Gec-Marconi Limited | Analogue to digital converter |
US5027120A (en) * | 1989-05-26 | 1991-06-25 | Gec-Marconi Limited | Delta-sigma converter with bandpass filter for noise reduction in receivers |
US5311181A (en) * | 1990-01-31 | 1994-05-10 | Analog Devices, Inc. | Sigma delta modulator |
GB2256331A (en) * | 1991-06-01 | 1992-12-02 | Marconi Gec Ltd | Analogue-to-digital converters |
US5392039A (en) * | 1991-06-01 | 1995-02-21 | Gec-Marconi Lmited | Sigma-delta analog to digital converter |
Non-Patent Citations (2)
Title |
---|
Dressler, H. J. Interpolative Bandpass A/D Conversion Experimental Results , Electronics Letters , vol. 26, No. 20, Sep. 27, 1990. * |
Dressler, H.-J. "Interpolative Bandpass A/D Conversion-Experimental Results", Electronics Letters, vol. 26, No. 20, Sep. 27, 1990. |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000025428A1 (en) * | 1998-10-23 | 2000-05-04 | Thomson-Csf | Delay compensation for analog-to-digital converter in sigma-delta modulators |
US6388601B1 (en) * | 1998-10-23 | 2002-05-14 | Thomson-Csf | Delay compensation for analog-to-digital converter in sigma-delta modulators |
FR2785109A1 (en) * | 1998-10-23 | 2000-04-28 | Thomson Csf | Sigma-delta modulator with delay compensation for contained analog-to-digital converter, has compensating filter in subtractor loop and digital-to-analog converter in feedback loop |
US7123177B2 (en) * | 2000-11-17 | 2006-10-17 | Broadcom Corporation | System and method for stabilizing high order sigma delta modulators |
US20050038847A1 (en) * | 2000-11-17 | 2005-02-17 | Broadcom Corporation | System and method for stabilizing high order sigma delta modulators |
US7209528B2 (en) * | 2001-06-01 | 2007-04-24 | National Semiconductor, Inc. | Over-sampling A/D converter with adjacent channel power detection |
US20040176892A1 (en) * | 2003-03-07 | 2004-09-09 | Denso Corporation | Data transmission system and occupant protection device |
US7164979B2 (en) * | 2003-03-07 | 2007-01-16 | Denso Corporation | Data transmission system and occupant protection device |
US20110156940A1 (en) * | 2004-11-16 | 2011-06-30 | St-Ericsson Sa | Continuous-time sigma-delta analog-to-digital converter with non-invasive filter(s) for immunity preservation against interferers |
US8159380B2 (en) * | 2004-11-16 | 2012-04-17 | St-Ericsson Sa | Continuous-time sigma-delta analog-to-digital converter with non-invasive filter(s) for immunity preservation against interferers |
US7057541B1 (en) * | 2004-11-29 | 2006-06-06 | Hrl Laboratories, Llc | Delta-sigma modulator using LC resonators |
US20080088346A1 (en) * | 2006-07-12 | 2008-04-17 | Coleman Edward P | Method and apparatus for voltage to current conversion |
US7859237B2 (en) * | 2006-07-12 | 2010-12-28 | Texas Instruments Incorporated | Method and apparatus for voltage to current conversion |
US20190393841A1 (en) * | 2017-06-16 | 2019-12-26 | Nippon Telegraph And Telephone Corporation | Amplifier |
US10804857B2 (en) * | 2017-06-16 | 2020-10-13 | Nippon Telegraph And Telephone Corporation | Amplifier |
Also Published As
Publication number | Publication date |
---|---|
EP0635176B1 (en) | 1997-07-16 |
DE69312281D1 (en) | 1997-08-21 |
DE69312281T2 (en) | 1998-01-22 |
WO1993021691A1 (en) | 1993-10-28 |
GB9307164D0 (en) | 1993-05-26 |
GB2266018B (en) | 1995-06-28 |
GB9207626D0 (en) | 1992-05-27 |
GB2266018A (en) | 1993-10-13 |
EP0635176A1 (en) | 1995-01-25 |
AU3958693A (en) | 1993-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GEC-MARCONI LIMITED, ENGLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:THURSTON, ANDREW MARK;REEL/FRAME:007852/0127 Effective date: 19941024 |
|
AS | Assignment |
Owner name: GEC-MARCONI COMMUNICATIONS LIMITED, UNITED KINGDOM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MARCONI ELECTRONIC SYSTEMS LIMITED;REEL/FRAME:010958/0714 Effective date: 19991128 Owner name: MARCONI ELECTRONIC SYSTEMS LIMITED, UNITED KINGDOM Free format text: CHANGE OF NAME;ASSIGNOR:GEC - MARCONI LIMITED;REEL/FRAME:010968/0327 Effective date: 19980917 Owner name: MARCONI MOBILE LIMITED, UNITED KINGDOM Free format text: CHANGE OF NAME;ASSIGNOR:GEC-MARCONI COMMUNICATIONS LIMITED;REEL/FRAME:010968/0703 Effective date: 20000328 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20050916 |